Detroit Speed's subframe connectors are fabricated from 1-1/2" x 2-1/2" x .083" wall steel tubing and increase the car's stiffness by connecting front and rear torque box structures. They also function as a side jacking rail. The connectors do not hang lower than the rocker pinch flange so ground clearance is unaffected. They provide a nice mounting structure for roll cage installations as well. Laser cut brackets are included to attach the front and rear of the connector tubes to the torque box structures. Includes new seat belt brackets that are stronger than stock and provide mounting points for the stock belt system or a race style lap belt.